Help Changing Right Stick Dead-zone (Xbox controller through Steam)

I have an old Xbox controller that is a bit busted, and the right stick has some downwards jitter. In other steam games, I use the steam controller settings and increase the dead-zone to around 60% to eliminate any stick jitter. This does not seem to work on FC26, I don't know why this would be the case, or if im applying something wrong. Any google searches I have attempted on how to change the stick dead-zone have not been any help. I have attempted to increase the deadzone through steam, and selected "enable steam input for xbox controllers", but this did not change FC 26's deadzone settings. Why is there no in-game setting to change this? Why don't the steam settings work?